Electrode holder



.Petemea nee. '15', `1925.

UNITED s'rsrEs' 1,565,406 PATENT OFFICE.

, .ELIETHUR R. ALLARD, OF WILKINSBU'Rtr, PENNSYLVANIA, ASSIGNQR TO WESTING- EOSE ELECTRIC 8c MANUFACTURING COMPANY, A CORPORATION OF PENNSYL- VANIA. e n

`ELECTRODE HOLDER.

Alipneauon mea November 12, 1920. serial (Ne. 423,543.

To aZZ whom it may concem:

Be it known that I, ARTHUR R. ALLARD, a citizen of the United States, and aresident of Vilkinsburg, in the county of Allegheny and VState of Pennsylvania, have invented a new and useful Improvementfin Electrode Holders, of which the following is a specification.

This invention relates to electrode holders, more especially tov holders for electrodes adapted for use in arc welding.

This invention has for-its object to provide an electrode holder of simple construction which is adapted to securely hold an electrode in pla-ce and provide. a good contact between the conducting member of the l i holder and the electrode.

A further object of this invention is to provide an electrode holder which will allow an electrode to be lreleased by pressure exerted by the operator upon the handle or grip-member of the holder.

In carrying the objects of my invention into effect, I provide aplurality of tubes having a conducting member passing therethrough, the rear end of the conducting member being secured to one of the tubes. A spring member is so secured tothe tubes that the tension thereof acts to draw the sametoward each other to forcel the conducting member against an electrode and thus hold it in place? y In the accompanyingv drawingsK forming a. part hereof and which illustrate .a lplurality of embodiments of my invention,

Fig. 1 is a, view, partly inl 'section and partly in elevation, of an electrode holder constructed in caccordance with my invenend portion of a slightly modied form of holder.

The electrode holder" comprises tubes 1 und 2 of insulatingmaterial dispsed in alinement, a collar 3 having-van, extension 4 being secured to the rear end of forward tube 1'. The collar 3fhas a pair of ears 5 ywhich are drawn toward eachother by a bolt or similar means 6 toirmly clampy une collar to the tube. A guard or shield 7 is secured to extension 4of collar 3 and is held thereto by bolts 8.

A spring 9, covered by suitable insulatin or covering material 10, has its forward en 11 inserted between guard 7 and extension 'member l17-and the pipe 22.

4 an'd is held rigidly in place by the bolts 8. The rear end '12 of spring 9 is secured to apair of ears 13 of a collar 14 which thus securely holds the spring to the tube 2. The ends of the spring tend to move toward each other, as shown bythe arrows 15, and

thus to force tubes 1 and 2 toward`- each other.

One end of a cable 16 is'located in the rear end of tube 2, in contact with conducting member 17, a sleeve 18 being provided to connect the cable and conducting member together. A spacer tube 19 is inserted between outer tube 2 and the conducting member 17. y f

Tube 1 is provided with sleeves 20 and 21 at its respective ends,said sleeves serving as guiding means for'tlie conducting member 17. A metal pipe or tube 22 is inserted bertween sleeves 20 and 21 and outer tube 1,

leavinga space 23 between thev conducting Openings 24 are formed at the forward end of the electrode holderto allow of an electrode 25 being slipped into place, the forward end 26 of conducting member 17 being forced against the electrode 25by the pressure of` spring 9 when free to act. The parts are so proportioned that, when an electrode is held in place, the space 27 between the two parts 1 'and 2 ofthe holder is small.

In the embodiment shown in Fig. 2, the forward end of theinsulating tube 1 is cut away, as shown, and a metal sleeve.28'is secured to pipeL 22. This member may be the ordinary T used in making pipe 'connections.v A plug member 29 is held therein in any suitable manner, as by threads, and an opening 30 is `formed in ,said plug to receive anelectrdde 25, which is heldin place as described inV connection with the embodiment shown in Fig. 1.

My electrode holder combines a compara ,tively simple construction with ease of manipulation. The operator grips the s ring 9 and the tube 2 very lightly when e is manipulating an arc, the construction being such'that he cannot exert Vconsiderable pressure thereon without releasing the electrode. f

Being thus compelled to grip the holder very lightly, the operator maymore readily. control the arc and may work a longer time without fatigue.

It -is apparent that various chang@ in the details of construction of my electrode holder may be made Without departing from the spirit of my invention. I desire to claim my invention broadly except as limited by the claims appended hereto.

I cla-im as my invention:

1. In an electrode holder, a conducting member, means for connecting a cable thereto, and a handle comprising a spring constitutingv gripping means for said holder.

2. In a holder for engaging an object, a pair of telescoping object-engaging members, the outer telescoping member having a portionextending beyond the inner memberv and having shoulders adapted to grip the object when said outer member is drawn backwardly over Athe inner telescoping member, said inner telescoping member eX- tending back farther Athan said outer telescoping member, and gripping means comprising a bowed spring connected between the rear endsof the telescoping members and biased to draw the outer telescoping member baclcwardly, whereby7 a predetermined pressure on the gripping means will release the held object.

3. An electrode holder comprising a handle portion, a conducting member secured therein, a sleeve disposedl around said -conducting member, means in said `sleeve for receiving an electrode and a spring conneeted to'said sleeve and handle which constitutes a part of the handle grip, said.

An electrodeholder comprising a plurality ot' tubes, a conducting member secured in one of said tubes and extending into a second tube, a spring handle secured to said tubes and serving to dra-W them toward each other, said seconditube having a laterally disposed opening in one end.

G. An electrode holder comprising a plurality of tubes, a conducting member secured in one of said tubes and extending into a second tube, a spring handle secured to said tubes and serving to draw said tubes toward each other, said spring handle being insulated from said conducting member, and said second tube having a lateral open ing in one end.

In testimony whereof, I have hereunto subscribed my name this 28th day of October, 1920. 4 v ARTHUR R. ALLARD. 

